The reason I'm a PTA instead of a mechanic is because of surgeries on both shoulders. Ripped off my left bicep tendon and was in PT for mths.My dad had rotator cuff surgery on both of his shoulders 15 years ago, he still can't lift his arms above his head. You gotta move as much as you can after surgery or you get locked up. My Dad blames golfing (which is probably partially to blame) but I blame him not doing the physical therapy long enough.
Gotta go do PT with my patients now. Talk at ya later.